Contact Profilometers

The Intra Touch employs a 50 mm traverse unit (maximum scan length) and a inductive transducer.  Typically we employ at stylus with a range of 1 mm (maximum height range), that has diamond conisphere tip with radius of 2 microns.

In terms of metrological measurements this will perform a single 2D profile, fairly quickly (typical in about a minute or two). Being a contact system it will measure any surface from transparent and translucent glass and plastics to most engineering surfaces.  With the limited gauge range we have to be a little careful with large form variations, also the diamond tip can be damaged/removed by very rough surface or deep pockets.

Intra Touch Specifications:

System Performance
Straightness (over 50 mm)	0.2 µm
Straightness (over 20 mm)	0.15 µm
Gauge type	High precision		Wide range
Stylus range	1 mm	2 mm	20 mm
Radius accuracy (10 - 25 mm)	0.04%
Radius accuracy (25 - 100 mm)	0.08%		0.04 - 0.1%
System noise (Rq)	8 nm		50 nm
Slope accuracy	0.5 arc minutes		2 arc minutes
Horizontal Performance
Traverse length - X Min / Max	0.1 mm to 50 mm
Traverse speed	10 mm/s max
Measuring speeds	0.25 mm/s, 0.5 mm/s, 1 mm/s, & 2 mm/s
Data sampling interval in X	0.5 µm
Vertical Performance	High precision		Wide range
Nominal Z (Range 1)	1 mm	2 mm	20 mm
Resolution (Range 1)	4 nm	8 nm	75 nm
Nominal Z (Range 2)	0.2 mm	0.4 mm	4 mm
Resolution (Range 2)	0.8 nm	1.6 nm	15 nm
Roughness stylus max. force	1 mN		3.5 mN
Range to resolution ratio	262,144 : 1

Useful downloads

In house user guide

Datasheet

Stylus Catalogue

Guide to measurements

The Surtronic S100 portable Surface Finish Meter offers a versatile solution for your roughness measurement requirements. Features include a large ruggedized display, long-life batteries and simple menu structure. The Surtronic can be used either freestanding (on horizontal, vertical or even inverted surfaces) or bench mounted with fixturing for batch surface roughness measurement and laboratory applications.

The 50mm stylus lift with right angle attachment and over 70mm stylus reach ensure that even the most challenging surface can be measured without the need for expensive fixturing. Anti-slip V-feet allow the Surtronic to be used on flat or curved surfaces.

The Surtronic S100 is extremely durable, featuring impact resistant rubberised mouldings surrounding a recessed, high durability touchscreen.

Below is a list of the most commonly used surface finish parameters, note R can be also be S in 3D roughness.